baber/WOPTO huggingface dataset:
Patent GB-1383153-A (GB)
Title: Buoy for determining physical or chemical characteristics of water
IPC: B63B22/20
Filed: 1973-02-15
Abstract: 1383153 Buoys RHEINMETALL GmbH 15 Feb 1973 [9 March 1972] 7572/73 Heading B7A A buoy for determining physical or chemical characteristics of the water in which it is suspended, comprises a plurality of parallel elongate cells 1 of circular or polygonal cross-section combined together honeycomb fashion and accommodating the required measuring instrumentation at least one of the cells being open at both ends to permit a flow of water therethrough. A buoyancy body 2 of streamlined cross-section is secured to the cells and carries fins 5 to stabilize the buoy in position in the water particularly when in use in a flowing stream of water with the cells 1 disposed horizontally as shown in Fig. 3. The cells 1 which are closed may have streamlined head and tail parts. When the buoy is intended for use in still water the cells 1 are preferably disposed vertically. Signals derived from the instrumentation mounted within the cells may be transmitted to a desired station either by cable connected to the buoy or by radio transmission from an aerial carrried by the buoyancy body 2. The cells 1 are preferably constructed from a foamed plastics material or from fibreglass reinforced plastics material.
Patent GB-1068693-A (GB)
Title: Process for the alkylation of a phenol
Inventor: BRIGGS ARTHUR STANLEY
IPC: C07C37/48
Filed: 1965-02-22
Abstract: Mixed isomeric butenes are reacted with 4-tert-butylphenol (I) in presence of an alkylation catalyst at elevated temperature, giving 2,4,6-tri-tert-butylphenol, possibly mixed with 2,4-di-tert-butylphenol; the product may be further reacted with phenol, under similar conditions, giving (I).  All reaction products are said to be substantially free of sec-butylphenols.
Patent GB-1502635-A (GB)
Title: Process for splitting steroid ethers
IPC: C07J1/00
Filed: 1975-02-24
Abstract: 1502635 Splitting steroid ethers SCHERING AG 24 Feb 1975 [27 Feb 1974] 7621/75 Heading C2U An etherified hydroxy group in a steroid which contains at least one aromatic ring in the nucleus is converted to a free hydroxy group by treatment of the steroid in a solvent with a compound AlR 1 R 2 R 3  wherein R 1 , R 2  and R 3  are each H or alkyl. Non-aromatic double bonds are not reduced. The etherified hydroxy group may be, e.g., in the 1-, 2-, 3-, 6-, 7-, 11-, 16- or 17- position. It is most generally in an aromatic A ring. In the process, carbonyl groups are reduced to hydroxy groups and ethylenedioxy groups are split to 2-hydroxyethoxy groups and these eventually to hydroxy groups. Acylated hydroxy groups are converted to free hydroxy groups. Products obtained in the examples are #<SP>1,3,5(10),7</SP> - estratetraene - 3,17# - diol ; #<SP>1,3,5(10),6,8</SP> - estrapentaene - 3,17# - diol; rac. - 3 - hydroxy - 17# - methyl - 14# - gona- 1,3,5(10),6,8 - pentaene; estradiol; #<SP>1,3,5(10)</SP>- estratriene - 2,3,17# - triol; #<SP>1,3,5(10),8</SP> - estratetraene - 3,17# - diol (diacetate described); rac. - 18 - methyl - #<SP>1,3,5(10),8</SP> - estratetraen- 3,17# - diol; #<SP>1,3,5(10)</SP> - estratriene - 3,8α,17#- triol; 20 - (21 - hydroxyethoxy) - #<SP>1,3,5(10)</SP>- pregnatriene-3,17α-diol and the corresponding 20 - ol; 4 - methyl - #<SP>1,3,5(10)</SP> - estratrien- 1,17# - diol; #<SP>1,3,5(10),16</SP> - estratetraen - 3 - ol; 3,17α - dihydroxy - #<SP>1,3,5(10)</SP> - estratriene; and 3,17α-dihydroxy-#<SP>1,3,5(10),7</SP>-estratetraene.
Patent GB-1535568-A (GB)
Title: Process for the preparation of an ethylene polymer
IPC: C08F6/00
Filed: 1976-02-26
Abstract: 1535568 Ziegler catalyst deactivation in high pressure ethylene polymerization SOC CHIMIQUE DES CHARBONNAGES 26 Feb 1976 [28 Feb 1975] 07682/76 Heading C3P Ethylene is polymerized in a continuous process at pressure above 500 bars and temperatures above 160‹ C., in the presence of a Ziegler catalyst, the polymerization being terminated by injection, in the molten state or in suspension or solution in a hydrocarbon, of a deactivator which is an alkali or alkaline earth metal or Zn salt of a carboxylic acid. The deactivator may be added at the exit to the polymerization reactor or at the inlet of product/monomer separators (from which recovered monomer may be recycled). Typical examples refer to the high pressure polymerization of ethylene using TiCl 4  supported on Mg(OEt) 2  or TiCl 3 .Y 3 AlCl 3 /Bu 3 Al or catalysts and, as deactivators, calcium stearate of sodium naphthoate.
Patent GB-570400-A (GB)
Title: Improvements in or relating to the polymerisation of organic compounds
IPC: C08F2/46
Filed: 1943-05-14
Abstract: A process for treating a halogen-free polymerizable compound containing a CH2=C< (other than acrylonitrile or a homologue thereof) or a mixture of such compounds, to increase the rate at which it will polymerize, which comprises washing the compound(s) with an aqueous oxidizing solution.  The subsequent polymerization can be carried out by any known method.  Specified oxidizing reagents are solutions of alkali-metal salts (sodium, potassium and ammonium) of perdisulphuric, chromic, dichromic, permanganic, chloric, perchloric, and perboric acids; hydrogen peroxide; peracetic acid; perbenzoic acid; and per-oxygen compounds in general.  Suitable ratios of oxidizing solution to monomer are from 1 to 5 parts by weight of 5 per cent oxidizing solution to 1 part of monomer.  Polymerizable compounds specified are acrylic acid esters and homologues, vinyl and itaconic esters, styrene; polyhydric alcohol polyesters of acrylic and alpha-substituted acids; olefinic monohydric alcohol esters of unsaturated acids; olefinic monohydric alcohol polyesters of saturated acids; and unsaturated amides such as vinyl acrylamide. In examples a 5 per cent aqueous solution of ammonium perdisulphate is used to wash (1) methyl acrylate, (2) methyl methacrylate, (3) methyl methacrylate containing 2 per cent hydroquinone, (4) ethyl methacrylate, (5) n-propyl methacrylate, (6) vinyl benzoate, (7) vinyl isobutyrate and (8) isobutylene, while a 5 per cent aqueous solution of potassium dichromate is used to wash n-propyl methacrylate.
Patent GB-903000-A (GB)
Title: Improvements in and relating to electrical protective relay systems
Inventor: ADAMSON COLIN
IPC: H02H3/30
Filed: 1958-03-11
Abstract: 903,000. Protective arrangements. ENGLISH ELECTRIC CO. Ltd. March 11, 1959 [March 11, 1958], No. 7789/58. Class 38 (5). A high-speed protective system responsive to the phase relationship between two signals, each having a square wave form and a 1 : 1 mark-tospace ratio and each representative of the current at one of two relatively spaced locations of a protected circuit, such as the system of Specification 902,998, is provided with a D.C. filter network as an input unit in a squaring stage and operative to filter the majority of any transient D.C. offset from the input signal to permit operation of the system in 1“ cycles. In the Figure, an auxiliary transformer 12, a parallel tuned inductor-capacitor combination 13 and a resistor 14 form the D.C. filter network which is supplied from a current transformer 11. The inductor-capacitor combination is tuned to the power frequency and by-passes the harmonics as well as the D.C. offset component.
Patent GB-583070-A (GB)
Title: Improvements in ground stations for air pick-up
IPC: B64D1/22
Filed: 1944-04-26
Abstract: 583,070. Transferring articles to aircraft. DEHN, F. B. (All American Aviation, Inc.). April 26, 1944, No. 7843. [Class 103 (iii)] In a ground station for air pick-up systems comprising spaced poles supporting a transfer line between their upper ends flags are attached to the upper ends of the poles having their plane held substantially in the plane of the poles by means of the transfer lines or loop. As shown, the poles 10, 11 are in sections 18, 19, 20 socketed together, the lower section 18 being provided with an offset spike 21 which may be pushed into the earth by foot or by using the section 19 in guides 45, 46 in the manner of a pile-driver. The upper end 20 is made of bamboo &c. and has the flag 17 attached thereto, the outer end of the flag being provided with a clip 44 which holds the transfer line or loop 12 to which the load 9 is secured. In a modification the clip 44 for the transfer line is attached to the section 20, the flag being held extended by a clip on the outer end of the flag engaging the transfer line.
Patent GB-902558-A (GB)
Title: Electrophotographic contact copying process
IPC: G03G13/22
Filed: 1961-03-03
Abstract: 902,558. Electrophotographic plates. KALLE A.G. March 3, 1961 [March 10, 1960], No. 7884/61. Class 37. [Also in Group XX] An electrophotographic copy sheet comprises a layer of one or more organic photo-conductors alone or in association with a resin either on a thin transparent to slightly cloudy support as of paper, regenerated cellulose or synthetic plastic foil, or a glass plate, or as a self-supporting layer. Suitable organic photo-conductors are oxadiazoles, imidiazolones such as 4:5- bis - (4<SP>1 </SP>- aminophenyl) - imidiazolone - (2), oxadiazoles such as 2 : 5-bis-[4<SP>1</SP>-N-ethyl-N-npropyl - aminophenyl - (11)] - 1 : 3 : 4 - oxadiazole, triazoles, oxaziles, thiazoles, triazines, and hydrazones. Reference is also made to the use of inorganic photo-conductors such as metallic sulphides, e.g. cadmium sulphide and metal oxides, e.g. zinc oxide. In examples, paper is coated with a solution in ethylene glycol monomethyl ether containing Rhodamine B as sensitizer of 2 : 5-bis-[4<SP>1</SP>-N-acetylaminophenyl - (1<SP>1</SP>)] - 1 : 3 : 4 - triazole, or with a zinc oxide dispersion.
Patent GB-1046546-A (GB)
Title: Improvements relating to solid state lasers
IPC: H01S3/08
Filed: 1964-02-26
Abstract: 1,046,546. Lasers. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 26, 1964 [March 26, 1963], No. 7909/64. Heading H3B. A solid state laser comprises a resonant cavity defined by a pair of parallel reflecting surfaces and an optical system adapted to accept at least part of the light output and to reflect at least part back into the resonant cavity. In the arrangement of Fig. 1 (not shown) the resonant cavity is formed by the silvered end of an optically pumped ruby and a partially reflecting external plane mirror. Light from the cavity is focused by a convex lens on to a partially transmissive plane mirror so that a substantial portion of the output light is reflected back into the cavity. In Fig. 2 a ruby crystal 40 positioned in a pumping cavity 42 provided with four pumping lamps 44 has one end 46 silvered and the other end 48 uncoated. The resonant cavity is formed by face 46 and the flat coated face of field lens 54 of a movable Ramsden eyepiece of a microscope. Field lens 54 and eye lens 56 form the optical system which reflects light back.
Patent GB-656196-A (GB)
Title: Protecting arrangement for agricultural binders
IPC: A01D61/00
Filed: 1948-03-16
Abstract: 656,196. Endless belt-conveyers. NORRBY, L. E. S. March 16, 1948, No. 7913. [Class 78 (i)] [Also in Group I] The canvas belt 1 of a reaping and binding machine is provided with protection for its forward crop-receiving edge, comprising a removable angle-iron strip 6 extending along it. The strip may be hinged to frame members 3 on which the belt rests and held in operative position by wing nuts 8. To allow for belt. tensioning, the strip is in two sections. A further angle-iron 10 is provided to protect the rear edge of the belt.
Patent GB-1145601-A (GB)
Title: Releasable fastening
Inventor: COOPER ROBERT BURGESS
IPC: F16B29/00
Filed: 1967-02-20
Abstract: 1,145,601. Catches. BURRAFIRM Ltd. 18 Dec., 1967 [20 Feb., 1967], No. 7937/67. Heading E2A. For use in a releasable fastening of the kind comprising two parts 10, 12 the part 12 having a mounting portion 13 and a pair of jaws 14 and the other part 10 having a mounting portion 11 and a head portion which is connected to the mounting portion by a neck portion, said jaws and said head portion being so shaped that the head portion can be releasably retained 'between the jaws in order releasably to fasten said two parts together, the part 10 has a head portion formed with a longitudinally extending slot 18 and a longitudinally extending recess communicating with said slot and wherein there is provided means mounted in said recess for varying the overall width of said head portion. In the embodiment shown the said means include a screw 19 and nut 20 between which there is mounted a sleeve 21 of deformable and resilient material such as rubber; the nut 20 is formed with a projection 22 which enters into a gap 23 between two pieces of material which form the neck portion so as to prevent the nut from rotating when the screw is rotated. The head of the screw is disposed on the outer side of two web-like portions 24 which extend inwardly from the inner periphery of two semi-annular portions 16, 17. The web-like portions, as shown, are at one end of the head but in an alternative construction the web-like portions are disposed intermediate the ends of the head portion and there are two sleeves instead of one on each side of the web-like portions.
Patent GB-203630-A (GB)
Title: Improvements in guitars and the like
IPC: G10D3/06
Filed: 1923-03-20
Abstract: 203,630. Pribyl, J. March 20, 1923. Guitars etc.; fingerboards; tail-pieces; bridges. -In a guitar or the like in which the neck has two finger-boards one on the upper and one on the underside, so that the tieble strings passing over the upper finger board may be stopped by the fingers and the bass strings passing under the lower stopped by the thumb, the two sets of strings 3, 4 overlap at the head end of the instrument, being connected to a single tail-piece, or to two tailpieces 5, 6 in juxtaposition. The nut for the bass strings is arranged nearer the head k than the nut 7, giving the bass strings a greater effective length.
Patent GB-128340-A (GB)
Title: Improvements in or relating to Apparatus for use in Waving the Hair.
Inventor: NESSLER CHARLES
IPC: A45D2/44
Filed: 1918-05-13
Abstract: 128,340. Nessler, C. May 13, 1918. Hair-curling appliances; combs, hair.-Combs 1 are connected by adjustably pivoted links 7, 8, 13, 14, 17, 18, 21, 22 so that they can be moved to the right or left parallel to each other. An elastic 25 passes through holes alternately towards opposite ends of the combs, and draws the' combs together whilst thrusting them alternately in opposite directions sideways. A coiled spring may replace the elastic; or separate springs may be arranged obliquely between adjacent combs. The points of the teeth of the combs follow a shallow curve, as shown, or the teeth may be telescopic so as automatically to adjust themselves to the shape of the head.
Patent GB-215158-A (GB)
Title: Improvements in and relating to induction motors
IPC: B21B37/46
Filed: 1923-03-20
Abstract: 215,158. British Thomson-Houston Co., Ltd., (Compagnie Francaise Thomson- Houston). March 20, 1923. Alternating-current motors.-The volts supplied to the stator of an induction motor during peak loads, such as the passage of a bloom through a rolling mill, are increased by means of an induction regulator and a relay device which responds to the load and operates the regulator. In the form shown, a relay 7, connected through a transformer or directly in series between the mains 2, 3, 4 and the regulator 5 which feeds the induction motor 1, is counterweighted at 9 and adapted to make contact at 10 with one or other of two contacts 12, 13 in accordance with the motor load. Closure of the contacts energizes the electromagnets 14, 15 which attract a clutch member 16 driven by a continuously-running servo-motor 17 and cause it to operate the induction regulator, as demanded by the load. Resistances may be employed to reduce the time constant of the magnets 14, 15 and, in the case of very rapid variations in the load, a device may be provided for shunting the relay 7 and causing the servo-motor to be clutched on the regulator so as to increase the volts to the maximum. This arrangement is of special use during the rapid initial passes of the bloom through the rolls. The relay shown may be replaced by one which operates in consequence of the fall of the machine speed with load.
Patent GB-727201-A (GB)
Title: Improvements in fuel supply systems for gas turbine engines
IPC: F02C9/16
Filed: 1953-03-24
Abstract: 727,201. Gas turbine plant. GENERAL MOTORS CORPORATION. March 24, 1953 [April 4, 1952], No. 8015/53. Class 110 (3). A gas turbine fuel system comprising a primary fuel control valve connected in series with an overspeed governor valve has an underspeed governor valve, which maintains a pre-set low speed, connected between the inlet of the primary control valve and the outlet of the overspeed valve. The invention is described with reference to a gas turbine engine A driving a propeller C through reduction gearing B and a generator D, fly-ball governor 44 and fuel pump 17 through an auxiliary drive shaft 12. The fuel from the discharge of the pump 17 passes through a primary throttle control valve 21 and an overspeed governor valve 23 to the engine. A variable underspeed governor valve 26 is connected between the delivery of the pump 17 and the inlet to the engine. The pressure drop across the valves 21, 23 and valve 26 is maintained constant by a by-pass valve 32. The valve 23 is normally open and the fuel supply to the engine is controlled by the pilot lever 30 which is connected to the valve 21 through a cam 40 and follower 36. The valve 26 comprises a piston 48 which is connected to the fly-ball governor 44 by a stem 43 and which slides in a sleeve 49. The position of the sleeve is determined by the throttle lever 30 through a cam 53 and follower 52. The speed at which the underspeed governor operates thus varies with the position of the throttle lever. The application of the invention to a power plant in which two engines drive a single propeller is also described. In this arrangement, if one engine fails and is cut out, the fuel supply to the other engine will be increased automatically to drive the propeller at the minimum speed. The system may have combined with it means for controlling the fuel supply in accordance with the ambient conditions and the combustion gas temperature.
Patent GB-1121412-A (GB)
Title: Liquid sampling-pipetting method and apparatus
IPC: G01N35/10
Filed: 1967-02-20
Abstract: 1,121,412. Liquid sampling apparatus. WARNER - LAMBERT PHARMACEUTICAL CO. 20 Feb., 1967 [24 Feb., 1966], No. 8048/67. Heading B1X. An apparatus for sampling liquids comprises three pumps 19, 20, 21 having pistons 31, 32, 33 respectively, a length of tubing 98 in communication with the pumps and having a pipette 109 a valve 116 for placing a liquid supply container 113 in communication with the pump and a plurality of operating devices for selectively actuating certain pairs of the pistons and certain single pistons. The actuating-means for the pistons includes levers 59, 60, 61, 62, the levers being coupled to cranked rods 69, 70, 71 and 72 respectively so that upon depression of the levers selectively, the lever 59 raises both pistons 33, 32, the lever 60 raises the piston 33 only, the lever 61 lowers both pistons 32, 33 and the lever 62 lowers the piston 31 only; the actuation of the lever 62 also controls a pinch-cock 116 via lever 117 (Fig. 2a). The stroke of the pistons may be adjusted by means of micrometer devices 45, 46. In operation, with all the pistons in the lower position, the lever 62 is actuated so as to open the pinch cock and allow a cleaning liquid to pass through the pumps and tubing 112, 109, 106, 98 from the container 113. The pipette 100 is then inserted into a container of reagent 123 and the lever 59 actuated to raise pistons 31, 32 and so draw in the reagent as shown in Fig. 4, the reagent being separated from the cleaning fluid by an airbubble. The pipette is then placed in a container of sample liquid 121 and the lever 60 actuated to raise a liquid sample into the tube 98. The pipette is then inserted into a test tube 124 and by depressing the lever 61 both pistons 32, 33 are moved downwardly to disperse the sample and reagent. Finally, the pipette is placed into a drain 122 and the lever 62 operated to expel the cleaning fluid.
Patent GB-827650-A (GB)
Title: Improvements relating to drives for control devices of cooking stoves
Inventor: HICKS ANTHONY MICHAEL
IPC: F24C3/12
Filed: 1955-03-19
Abstract: 827,650. Shafts; universal joints. SIMPLEX ELECTRIC CO. Ltd. March 19, 1956 [March 19, 1955], No. 8072/55. Class 80 (2). [Also in Groups XI and XXXVII] A transmission shaft connecting a knob 17 with a thermostat head or switch 13 comprises an upper shaft 24 driven by bevel gears 25 from the spindle 18 of the knob and a lower shaft 26 telescopically connected to the upper shaft 24 and disconnectably coupled to the spindle of the head 13. The telescopic joint comprises pins 30 projecting from the lower end of shaft 24 sliding in slots 29 formed in U-shaped head secured to the lower shaft 26. The slots 29 are closed at the top and a diagonal open-ended slot in one or each limb of the head allows the shafts to be easily connected. The lower end of shaft 26 carries a male member with diametricallyopposed pins 31 which engage slots 16 in the walls of a socket 15 secured to the spindle of thermostat head. Specifications 784,427 and 785,057, [both in Group XI], are referred to.
Patent GB-765048-A (GB)
Title: Machines for producing filter mouthpiece cigarettes or other tobacco rod articles provided with a mouthpiece
IPC: A24C5/47
Filed: 1955-03-22
Abstract: 765,048. Applying mouthpieces to cigars and cigarettes. KORBER, K. March 22, 1955 [March 31, 1954], 'No. 8261/55. Class 130. Mouthpieces M travelling on a grooved drum 1 for association on a grooved drum 2 with cigarettes, cigarillos or other tobacco rod articles Z are retained by springs 5 on a segmental member 4, each assembly of aligned mouthpieces and cigarettes, &c., M, Z, e.g. a double-length filter mouthpiece between two cigarettes, being retained on the drum 2, and on a further drum 3 to which it is transferred, by guides 6, 7 which overlap at the transfer point, similar guides being used alternatively or in addition where cigarettes, &c. are transferred from another drum (not shown) to the drum 2. Uniting of the assembly by a connecting band is effected on the drum 3.
Patent GB-1139821-A (GB)
Title: Shoe polishing machine
IPC: A47L23/02
Filed: 1966-02-24
Abstract: 1,139,821. Shoe cleaning machines. W. FROWEIN [trading as FROBANA K.G.]. 24 Feb., 1966 [24 Feb., 1965], No. 8277/66. Heading A4F. In a shoe polishing machine in which rotating brushes are revolved around a support for an inserted shoe worn by the user of the machine, the maximum height of contact between a brush and a shoe is varied during a revolution in order to prevent polish being applied to the user's sock or stocking. The machine illustrated is adapted to polish either brown or black shoes, a shoe to be polished being placed on one of two supporting plates 12 about which revolve rotating brushes 8 or 9. The latter are rotatable in bearing arms 43 or 44 pivotally mounted on a plate 6 or 7 rotatable by a roller 14 driven by an electric motor 36. Each pair of arms 43 or 44 is drawn together by a tension spring 16 to engage friction rollers 10 or 11 with an oval guide plate 13 to rotate the brushes 8 or 9. As the latter revolve the arms 43 or 44 are each tilted at a variable angle by a spring 16 to vary the maximum height of contact of each brush 8 or 9 with the shoe. Polish applying brushes 24 are provided above the supporting plates 12. The machine may be coin operated, and the driving motor 36 and electromagnetic valves through which polish is supplied to the brushes 24 may be controlled by either of two switches actuated by the heel of an inserted shoe.